Island



(No Model G. HANCOCK;

BRAKE FOR VELOUIPEDES.-

' No. 503,112. Patented ugg's, 1893;

a l zi "H a EV UNITED STATES PATENT OFFICE.

GEORGE HANCOCK, OF PROVIDENCE, I RHODE ISLAND.

, BRAKE FO R VELOCiPED'ES.

SPECIFICATION forming part of Letters Patent No. 503,112, dated AugustB, 1893.

Application filed June 20, 1892. Serial ll'o 437,377. (No model.)

\ To a whom it may concern} bar f, which connects the opposite arms of Be it known that I, GEORGE HANCOCK, a the fork, and forms a bearing g for the adoitizen of the United States, residing at Provij usting screw h, which engages with the fiat deuce, in the State of Rhode Island, have inspring 1' attachedatits upper end to the head 40 5 vented a new and useful Improvement in j of the fork G, the arms la, la, of the said Brakes for Velocipedes, of' which the followspring being made to bear against the periph ing is a specification. cry of the flanges m, m, of the metal barrel d, The nature of my invention consists in an of the brake roller H, to friction the same to adjustable friction brake, comprising a fricthe required degree. The normal position of 5 1o tioned roller, which serves to transfer the rubthe brake roller is represented in Fig. 1, be-

bing friction from the surface of the rubber ing held away from contact with the tire I, by tire to a metallic surface upon the roller, as means of the spiral spring a, which acts in hereinafter fully set forth. an upward direction against the adjustable Figure 1, represents a side elevation of a collar 0, held upon the rod F; and when the 50 I5 bicycle provided with my improved friction rider desires to apply the brake, he pulls upbrake. Fig. 2, represents an enlarged longiward on the brake lever C, thus depressing tudinal section of the brake roller, as taken the brake roller H, into contact with the pein the line 2, 2, of Fig. 3. Fig. 3, represents riphery of the tire I, which causes the said atransverse central section of the same. Fig. roller to revolve against the friction of the 55 2o 4:, represents a rear view of the brake roller, spring 2', so that the wear will come upon the showing a plan view of the friction spring. metallic flanges of the brake roller, and not In the accompanying drawings, A repreupon the rubber tire; thus greatly increasing sents the frame of the bicycle, B the handle the durability of the tire, the necessary slipbar, and C the brake lever, which is jointed ping contact being transferred to a metallic 6c 2 5 to the head D, of the steering fork E, and to wearing surface. 7 J

the end a, of the brake lever C, is jointed the I claim as my invention+ rod F, which passes loosely through the eye The combination with the rubber tire, of or bearing 1), and to the lower end of the rod the grooved brake roller, the friction spring F is attached the forkG, at the lower end of adapted to bear against the periphery of the 6 30 which, upon the fixed pin 0, is placed the roller, and the adjusting screw, substantially brake roller H, which is loose upon the said as described. pin. The roller I-I comprises a metal barrel d, upon which is vulcanized a ring of rubber e, which is made in grooved form to fit the pe- Witnesses: 35 riphery of the tire I, of the steering wheel J SOCRATES SCHOLFIELD,

One side of the fork G, is provided with the JOSEPH J. SCHOLFIELD.

GEORGE HANCOCK. 

